Emissioni di gas serra, brevetti ambientali ed effetti di spillover nelle province italiane

Federica Caratù, Massimiliano Mazzanti, Francesco Nicolli


This study analyzes the geographical distribution of CO2 emissions and knowledge spillovers in relation to spatial concentration of green patents, using a balanced panel of 475 observations in 95 Italian provinces from 1990 to 2010. We found a brown area in Northern provinces, in which CO2 emissions are higher compared to other areas, while the lowest emissions are found in Central Italy. Analyzing the geographical distribution of patent stock, we observe a higher level of green patents in the North. We also find a positive and robust correlation between spillovers and green patent stock that we interpret as evidence that environmental innovation activities in Italian provinces are influenced by green patents from neighboring provinces. The higher correlation coefficient in the North-East adds original empirical evidence regarding the spatial concentration of green patents. We also found evidence of negative correlation between CO2 emissions and emission intensity (CO2/VA) and knowledge spillovers. We use this result to assert that knowledge spillovers influence a province’s environmental innovation and, with it, its environmental performances.  

Parole chiave

emissions; green patents; knowledge spillovers

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Riferimenti bibliografici

Aghion, P., & Jaravel, X. (2015). Knowledge Spillovers, Innovation and Growth. The Economic Journal, 125(583), 533–573. http://doi.org/10.1111/ecoj.12199

Ambec, S., & Lanoie, P. (2008). Does It Pay to Be Green? A Systematic Overview. Academy of Management Perspectives, 22(4), 45–62.

Ambec, S., Cohen, M., Elgie, S. and Lanoie, P. (2013) The Porter Hypothesis at 20: Can Environmental Regulation Enhance Innovation and Competitiveness?. Review of Environmental Economics and Policy 7 (1), 2-22.

Barbieri, N., Ghisetti, C., Gilli, M., Marin, G., & Nicolli, F. (2016). a Survey of the Literature on Environmental Innovation Based on Main Path Analysis. Journal of Economic Surveys http://doi.org/10.1111/joes.12149

Bottazzi, L., & Peri, G. (2003). Innovation and spillovers in regions: Evidence from European patent data. European Economic Review, 47(4), 687–710. http://doi.org/10.1016/S0014-2921(02)00307-0

Carrión-Flores, C. E., & Innes, R. (2010). Environmental innovation and environmental performance. Journal of Environmental Economics and Management, 59(1), 27–42. http://doi.org/10.1016/j.jeem.2009.05.003

Cole, M. a., Elliott, R. J. R., Okubo, T., & Zhou, Y. (2012). The carbon dioxide emissions of firms: A spatial analysis. Journal of Environmental Economics and Management. http://doi.org/10.1016/j.jeem.2012.07.002

Cole, M.A. & Neumayer, E. (2004). Examining the impact of demographic factors on air pollution. Population and Environment, 26, pp.5–21

Commoner, B., (1971). The closing circle: nature, man and technology. Alfred A. Knopf, New York.

Costa, M., & Iezzi, S. (2004). Technology spillover and regional convergence process: A statistical analysis of the Italian case. Statistical Methods and Applications, 13(3), 375–398. http://doi.org/10.1007/s10260-004-0088-0

Costantini, V., Mazzanti, M., & Montini, A. (2013). Environmental performance, innovation and spillovers. Evidence from a regional NAMEA. Ecological Economics, 89, 101–114. http://doi.org/10.1016/j.ecolecon.2013.01.026

Dietz, T., & Rosa, E. A. (1994). Rethinking the Environmental Impacts of Population , Affluence and Technology ’. Human Ecology Review 1, 277–300.

Dietz, T., & Rosa, E. a. (1997). Effects of population and affluence on CO2 emissions. Proceedings of the National Academy of Sciences of the United States of America, 94(January), 175–179. http://doi.org/10.1073/pnas.94.1.175

Ehrlich, P. R., Holdren, J. P., Series, N., & Mar, N. (1971). Impact of Population Growth. Science, 171(3977), 1212–1217. http://doi.org/10.1126/science.171.3977.1212

EU Commission. Europe 2020. A strategy for smart, sustainable and inclusive growth. Communication from the Commission.

COM (2010) 2020 final, 3 March 2010.

European Environment Agency. (2015). Annual European Union greenhouse gas inventory 1990–2012 and inventory report 2014, (19). Retrieved from http://www.eea.europa.eu/publications/european-union-greenhouse-gas-inventory-2014

Ghisetti, C., Quatraro, F. (2014). Is green knowledge improving environmental productivity? Sectoral evidence from italian regions. SEEDS Working Papers 10/2014

Giuliani, E. (2007). Toward an understanding of knowledge spillovers in industrial clusters, Applied Economics Letters, 2007 (14) 87–90. http://doi.org/10.1080/13504850500425907

Horbach, J. (2008). Determinants of environmental innovation-New evidence from German panel data sources. Research Policy, 37(1), 163–173. http://doi.org/10.1016/j.respol.2007.08.006

Horbach, J., Rammer, C., & Rennings, K. (2012). Determinants of eco-innovations by type of environmental impact - The role of regulatory push/pull, technology push and market pull. Ecological Economics, 78, 112–122. http://doi.org/10.1016/j.ecolecon.2012.04.005

Jaffe, A., Newell, R., & Stavins, R. (2002). Environmental Policy and Technological Change. Environmental and Resource Economics, 22(1), 41–70. http://doi.org/10.1023/A:1015519401088

Jiang, L., & Hardee, K. (2011). How do Recent Population Trends Matter to Climate Change? Population Research and Policy Review, 30(2), 287–312. http://doi.org/10.1007/s11113-010-9189-7

Jirjahn, U., & Kraft, K. (2011). Do Spillovers Stimulate Incremental or Drastic Product Innovations? Evidence from German Establishment Data. Oxford Bulletin of Economics and Statistics, 73(4), 509–538. http://doi.org/10.1111/j.1468-0084.2010.00618.x

Kemp, R., & Pearson, P. (2007). Final report MEI project about measuring eco-innovation. European Environment, 120. Retrieved from http://www.oecd.org/env/consumption-innovation/43960830.pdf

Kesidou, E., & Demirel, P. (2012). On the drivers of eco-innovations: Empirical evidence from the UK. Research Policy, 41(5), 862–870. http://doi.org/10.1016/j.respol.2012.01.005

Kyriakopoulou, E., Xepapadeas, A., 2009. Environmental policy, spatial spillovers and the emergence of economic agglomerations. FEEM Working Paper, No 70. FEEM, Milan, Italy.

Lotti, F., Marin, G. (2015). Productivity effect of eco-innovations using data on eco-patents. SEEDS Working Papers 17/2015

Mariotti, S., Piscitello, L., & Elia, S. (2010). Spatial agglomeration of multinational enterprises: The role of information externalities and knowledge spillovers. Journal of Economic Geography, 10(4), 519–538. http://doi.org/10.1093/jeg/lbq011

Mazzanti, M., Zoboli, R., (2006). Examining the Factors Influencing Environmental Innovations. Fondazione Eni Enrico Mattei, Note di Lavoro. 20(I), 1–32. http://doi.org/10.2139/ssrn.879721

OECD. (2011), OECD Regions at a Glance 2011, OECD Publishing, Paris.

DOI: http://dx.doi.org/10.1787/reg_glance-2011-en

OECD. (2013), OECD Regions at a Glance 2013, OECD Publishing, Paris.

DOI: http://dx.doi.org/10.1787/reg_glance-2013-en

Popp, D. (2002). Induced innovation and energy prices. American Economic Review, 92, pp.160–180.

Popp, D., Hascic, I. & Medhi, N. (2011). Technology and the diffusion of renewable energy. Energy Economics, 33(4), pp.648–662.

Porter, M.E., van der Linde, C. (1995). Toward a new conception of the environment- competitiveness relationship. Journal of

Economic Perspectives 9 (4), 97–118.

Sedezzari, L. (2014). La politica industriale e gli strumenti di

finanziamento dell’UE per le PMI ai fini di una reindustrializzazione

dell’Europa. Argomenti, 2014(41), 91-121

Shi, A. (2003). The impact of population pressure on global carbon dioxide emissions , 1975 - 1996: evidence from pooled cross-country data. Ecological Economics, 44, 29–42. http://doi.org/10.1016/S0921-8009(02)00223-9

Wang, S. X., Fu, Y. B., & Zhang, Z. G. (2015). Population growth and the environmental Kuznets curve. China Economic Review, 36, 146–165. http://doi.org/10.1016/j.chieco.2015.08.012

Wei, T. (2011). What STIRPAT tells about effects of population and affluence on the environment? Ecological Economics, 72, 70–74. http://doi.org/10.1016/j.ecolecon.2011.10.015

Weina, D., Gilli, M., Mazzanti, M., & Nicolli, F. (2014). Green inventions and greenhouse gas emission dynamics : A close examination of provincial Italian data, SEEDS Working Papers, 30/2014 http://doi.org/10.1007/s10018-015-0126-1

York, R., Rosa, E. a, & Dietz, T. (2002). Bridging environmental science with environmental policy: Plasticity of population, affluence, and technology. Social Science Quarterly, 83(1), 18–34. http://doi.org/10.1111/1540-6237.00068

York, R., Rosa, E. a., & Dietz, T. (2003). STIRPAT, IPAT and ImPACT: Analytic tools for unpacking the driving forces of environmental impacts. Ecological Economics, 46(3), 351–365. http://doi.org/10.1016/S0921-8009(03)00188-5

DOI: http://dx.doi.org/10.14276/1971-8357.560


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